Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology最新文献_第3页

Jerk-segmented adaptive iterative learning control for ball screw feed systems 滚珠丝杠进给系统的分段自适应迭代学习控制

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-05-01 Epub Date: 2026-01-02 DOI: 10.1016/j.precisioneng.2026.01.004

Hongda Liu, Wentie Niu, Yonghao Guo

Feedforward compensation can reduce dynamic errors and improve tracking accuracy and response speed, but residual errors often exist in engineering applications. This study proposes a jerk-segmented adaptive iterative learning control (ILC) strategy to address this limitation. The surrogate model's feedforward compensation generates high-quality initial inputs. The trajectory is divided into segments based on jerk. Within each segment, tracking errors are filtered using a zero-phase Butterworth filter to extract their low-frequency trend. A nonlinear PID-type learning law is then applied: the proportional term acts on the raw error with nonlinear scaling and saturation, while the integral and derivative terms operate on the filtered trend to improve stability. All control parameters are adaptively adjusted based on the filtered error's energy. Simulation and experimental results under 10 kHz sampling show that the proposed method significantly improves tracking accuracy. Compared with norm-optimal ILC and the case without ILC, the technique reduces steady-state RMSE by up to 57.40 % and peak tracking error by up to 38.19 % during high-dynamic motion phases. The proposed method ensures consistent performance across simulation and physical experiments.

前馈补偿可以减小动态误差，提高跟踪精度和响应速度，但在工程应用中往往存在残余误差。本研究提出了一种自适应迭代学习控制（ILC）策略来解决这一限制。代理模型的前馈补偿产生高质量的初始输入。根据推力将轨迹划分为若干段。在每个段内，使用零相位巴特沃斯滤波器对跟踪误差进行滤波，提取其低频趋势。然后应用非线性pid型学习规律：比例项作用于具有非线性缩放和饱和的原始误差，而积分和导数项作用于滤波趋势以提高稳定性。所有控制参数根据滤波误差的能量自适应调整。在10khz采样下的仿真和实验结果表明，该方法显著提高了跟踪精度。在高动态运动阶段，与规范最优ILC和不使用ILC的情况相比，该技术将稳态RMSE降低了57.40%，峰值跟踪误差降低了38.19%。该方法保证了仿真和物理实验的一致性。

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引用次数: 0

Research on the acoustic softening effect of ultrasonic vibration-assisted cutting of nickel-based superalloys 超声振动辅助切削镍基高温合金的声软化效应研究

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-05-01 Epub Date: 2026-01-02 DOI: 10.1016/j.precisioneng.2026.01.005

Yihang Fan , Zhongyue Liu , Zhaopeng Hao

During ultrasonic vibration-assisted cutting, the application of an ultrasonic energy field induces material softening in metals, thereby reducing the cutting force. This technique thus offers significant advantages in the machining of nickel-based super alloys. However, the microscopic mechanisms underlying metal deformation under ultrasonic effects remain not fully understood. To address this, the present study employs molecular dynamics simulations to investigate the acoustic softening effect in nickel-based superalloys at the microscale, focusing on the plastic deformation zone during ultrasonic vibration cutting. Based on dislocation theory, the influence of ultrasonic vibration on dislocation density, potential energy barriers, and dislocation mobility is systematically analyzed, enabling a theoretical exploration of the microscopic mechanisms responsible for acoustic softening. Analysis of dislocation density and motion velocity from the simulations indicates that ultrasonic vibration promotes dislocation movement and annihilation while reducing dislocation entanglement and pile-up. Furthermore, comparative turning experiments between ultrasonic-assisted and conventional turning demonstrate that the application of ultrasonic vibration leads to a reduction in internal dislocation density and fewer dislocation obstacles within the workpiece. These findings provide enhanced insight into the microstructural mechanisms underlying the acoustic softening effect induced by ultrasonic vibration.

在超声振动辅助切削过程中，利用超声能量场诱导金属材料软化，从而减小切削力。因此，该技术在镍基超级合金的加工中具有显著的优势。然而，超声作用下金属变形的微观机制仍不完全清楚。为了解决这个问题，本研究采用分子动力学模拟来研究微观尺度下镍基高温合金的声学软化效应，重点研究超声振动切削过程中的塑性变形区。基于位错理论，系统分析了超声振动对位错密度、位能垒和位错迁移率的影响，从理论上探讨了声软化的微观机制。仿真结果表明，超声振动促进了位错的运动和湮灭，减少了位错纠缠和堆积。此外，超声辅助车削与常规车削的对比实验表明，超声振动的应用降低了工件内部位错密度，减少了工件内部位错障碍。这些发现为进一步了解超声振动引起的声软化效应的微观结构机制提供了新的思路。

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引用次数: 0

A comparative study of precision abrasive machining using a customized novel additively manufactured flexible tool 定制新型增材制造柔性刀具精密磨料加工的对比研究

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-05-01 Epub Date: 2026-01-06 DOI: 10.1016/j.precisioneng.2026.01.008

Dawid Zieliński , Tesfaye Mengesha Medibew , Sisay Workineh Agebo , Mariusz Deja

Currently, research is investigating how advancements in abrasive machining, a post-processing method in manufacturing, can benefit from additive manufacturing (AM) technology. The study evaluated the machining performance of flexible abrasive tools produced by mSLA with ABS-like resin + and ABS-like resin V2, FDM with ABS and TPU, and SLS with PA12 industrial for processing 41Cr4 alloy steel samples. The portable 5-axis CNC milling machine conducted extensive machining trials on 41Cr4 alloy steel samples at various depths of cut (0.1–0.3 mm) to assess material removal rates, surface quality parameters, and tool wear behavior. The study investigated how technology affected specimen material loss through surface quality evaluation by measuring 2D (Wt) and 3D (Sa, Sz) roughness and waviness parameters using a 3D optical profilometer. The research showed TPU tools delivered superior surface quality but achieved lower material removal rates. The mass material removal rates of SLS-printed PA12 industrial tools exceeded those of ABS tools while maintaining stability under machining conditions. The performance of resin-based tools declined due to excessive tool wear, which resulted from their brittle nature. The study also suggested specific applications for the materials, indicating where they are most effective for removing aggressive materials. Resin-based tools excel in shallow-depth precision work, while TPU tools are well-suited for precision finishing tasks. The research reveals critical performance trade-offs in precision abrasive machining operations, while demonstrating the ability of AM to generate customized abrasive tools.

目前，研究人员正在研究如何从增材制造（AM）技术中受益于磨料加工（制造中的后处理方法）的进步。研究评价了ABS-like resin +和ABS-like resin V2的mSLA、ABS-like resin +和TPU的FDM、PA12 industrial的SLS柔性磨具加工41Cr4合金钢试样的加工性能。便携式五轴数控铣床对41Cr4合金钢样品进行了不同切削深度（0.1-0.3 mm）的大量加工试验，以评估材料去除率、表面质量参数和刀具磨损行为。该研究通过使用3D光学轮廓仪测量2D （Wt）和3D （Sa, Sz）粗糙度和波浪度参数，通过表面质量评估来研究技术如何影响样品材料损失。研究表明，TPU工具具有优异的表面质量，但材料去除率较低。sls打印PA12工业刀具的质量材料去除率超过ABS刀具，同时在加工条件下保持稳定性。由于树脂基刀具的脆性，导致刀具过度磨损，导致刀具性能下降。该研究还提出了这些材料的具体应用，指出了它们在去除腐蚀性材料方面最有效的地方。树脂基工具在浅深度精密工作中表现出色，而TPU工具则非常适合精密加工任务。该研究揭示了精密磨料加工操作中的关键性能权衡，同时展示了增材制造生成定制磨具的能力。

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引用次数: 0

Response of surface micro-topography of monocrystalline silicon to physical characteristics of polishing pads 单晶硅表面微形貌对抛光垫物理特性的响应

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-05-01 Epub Date: 2026-01-09 DOI: 10.1016/j.precisioneng.2026.01.012

Yujie Liu , Lingzhong Li , Fukun Li , Guanbo Qiao , Haixiang Hu , Yang Bai , Xuejun Zhang

X-ray mirrors commonly employ monocrystalline silicon as the core optical element, whose surface roughness directly impacts the transmission efficiency and spot quality of the light source system. For X-ray mirrors, an initial polishing stage employing a polishing pad, to achieve superior surface roughness under conditions of high-efficiency material removal and figure convergence, thereby enabling high-precision and highly efficient manufacturing. This study investigates the correlation mechanism between polishing pad characteristics and the surface roughness of monocrystalline silicon, this study established a contact mechanics model for the polishing pad monocrystalline silicon interface. Systematic experiments and simulation analyses revealed the governing rules of asperity morphology on surface quality. The results indicate that polishing pads with a high elastic modulus exhibit superior dynamic conformity to the surface topography, a larger elastic contact ratio, more concentrated contact pressure, and more uniform local pressure. Polishing pads with low surface roughness demonstrate excellent spatial uniformity in asperity height distribution, facilitating the formation of an effective support network where asperities undergo coordinated deformation, leading to uniform stress distribution during polishing. Under optimized colloidal silica slurry concentration, the polishing pad featuring high elastic modulus and low surface roughness yielded the best monocrystalline silicon surface quality. Surface roughness measured by White Light Interferometry (Zogo 10X) reached 0.237 nm, while characterization via Atomic Force Microscopy (AFM) achieved 0.0807 nm. This study provides guidance for the selection and optimization of polishing pads in the manufacturing of high-precision optical components.

x射线反射镜通常采用单晶硅作为核心光学元件，其表面粗糙度直接影响光源系统的透射效率和光斑质量。对于x射线反射镜，采用抛光垫的初始抛光阶段，在高效去除材料和图形收敛的条件下实现卓越的表面粗糙度，从而实现高精度和高效率的制造。本研究探讨了抛光垫特性与单晶硅表面粗糙度的相关机理，建立了抛光垫与单晶硅界面的接触力学模型。系统的实验和仿真分析揭示了粗糙形貌对表面质量的控制规律。结果表明：高弹性模量抛光垫与表面形貌的动态一致性好，弹性接触比大，接触压力更集中，局部压力更均匀；表面粗糙度低的抛光垫在凹凸度高度分布上具有良好的空间均匀性，有利于形成有效的支撑网络，使凹凸度协同变形，从而使抛光过程中的应力分布均匀。在优化的硅胶浆浓度下，高弹性模量、低表面粗糙度的抛光垫获得了最佳的单晶硅表面质量。通过白光干涉（Zogo 10X）测量的表面粗糙度达到0.237 nm，而通过原子力显微镜（AFM）表征的表面粗糙度达到0.0807 nm。该研究为高精度光学元件制造中抛光垫的选择和优化提供了指导。

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引用次数: 0

Nonlinear vibration analysis and global sensitivity-driven optimization of large-length-to-diameter ratio grinding spindles under mass eccentricity excitation 质量偏心激励下大长径比磨削主轴非线性振动分析及全局灵敏度优化

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-05-01 Epub Date: 2026-01-20 DOI: 10.1016/j.precisioneng.2026.01.022

Zijun Zhu , Xianglong Zhu , Yindi Cai , Renke Kang , Shuli Wang , Quanbao Sheng

Grinding spindles with a large length-to-diameter (L/D) ratio exhibit low structural stiffness and are susceptible to mass eccentricity, which can lead to dynamic instability. To accurately predict their vibration characteristics, this study establishes a coupled dynamic model of the shell, core shaft, and bearing system, incorporating structural flexibility and nonlinear excitation. The model explicitly accounts for the excitation induced by the mass eccentricity inherent in the coupling structure of the spindle. Using a combined approach of Morris global sensitivity analysis and multiple regression, the influence laws and weight coefficients of bearing stiffness, material properties, and eccentric mass on the dynamic response are investigated both qualitatively and quantitatively. Experimental validation confirms a high consistency between the measured and predicted vibration displacements and dominant frequencies. The results indicate that rotor eccentric mass and rotational speed are the dominant factors affecting radial vibration displacement, with eccentric mass being the most sensitive parameter. Furthermore, mass eccentricity excitation is found to prominently excite vibrations at the 10th harmonic frequency. Based on the sensitivity analysis, an optimal material combination is identified, which achieves a 5.1 % reduction in dynamic vibration amplitude compared to the original configuration. This work provides a validated methodology for optimizing the design of high-precision grinding spindles and predicting their dynamic performance at the design stage, particularly for spindles with large L/D ratios under mass eccentricity excitation.

长径比大的磨削主轴结构刚度低，易受质量偏心的影响，从而导致动力失稳。为了准确预测其振动特性，本研究建立了考虑结构柔性和非线性激励的壳体、芯轴和轴承系统的耦合动力学模型。该模型明确地考虑了主轴耦合结构中固有的质量偏心所引起的激励。采用Morris全局灵敏度分析和多元回归相结合的方法，定性和定量地研究了轴承刚度、材料性能和偏心质量对动力响应的影响规律和权重系数。实验验证证实了测量和预测的振动位移与主导频率之间的高度一致性。结果表明，转子偏心质量和转速是影响径向振动位移的主要因素，其中偏心质量是最敏感的参数。此外，发现质量偏心激励显著地激发了10次谐波频率的振动。基于灵敏度分析，确定了最优的材料组合，与原结构相比，动态振动幅值降低了5.1%。这项工作为高精度磨削主轴的优化设计和在设计阶段预测其动态性能提供了一种有效的方法，特别是对于质量偏心激励下具有大L/D比的主轴。

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引用次数: 0

Linearization design of a XY stage based on hybrid reluctance actuators 基于混合磁阻作动器的XY级线性化设计

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-03-01 Epub Date: 2025-11-27 DOI: 10.1016/j.precisioneng.2025.11.027

Weipeng Li , Weidong Yu , Zhengyan Dai , Yukai Zhu , Guangyuan Wang , Xiantao Li

The nonlinearity of hybrid reluctance actuators (HRA) significantly restricts their applications in XY stage requiring long stroke, high bandwidth, and high precision. This paper presents an improved design methodology and experimental verification focusing on nonlinearity reduction of a XY stage based on hybrid reluctance actuators (HRA-XYS). Initially, the primary sources of nonlinearity in conventional HRA were analyzed, leading to a magnetic flux topological optimization approach for nonlinearity mitigation. Subsequently, a comprehensive dynamic model incorporating nonlinear characteristics was established, followed by a nonlinear optimization framework for key parameter design. Based on the optimization results, a prototype was fabricated for comprehensive performance evaluation and a proportional-derivative (PD)-based feedback compensator was implemented to extend bandwidth by actively modifying system stiffness and damping. Experimental results demonstrate significant improvements: nonlinearity <3.2 %, cross-axis coupling <0.4 %, positioning accuracy better than 0.1 μm, working stroke exceeding ±500 μm, and bandwidth of 375 Hz. These achievements verify the effectiveness of the proposed linearity-oriented design methodology and underscore its advance compared to similar works, indicating that the optimized actuator exhibits superior comprehensive performance in precision, stroke capability, and dynamic response characteristics.

混合磁阻作动器的非线性特性极大地限制了其在长行程、高带宽和高精度的XY阶段的应用。本文提出了一种改进的设计方法和实验验证，重点研究了基于混合磁阻作动器（HRA-XYS）的XY级非线性降低。首先，分析了传统HRA中非线性的主要来源，并提出了一种磁通拓扑优化方法来缓解非线性。在此基础上，建立了考虑非线性特性的综合动力学模型，建立了关键参数的非线性优化框架。基于优化结果，制作了综合性能评估样机，并实现了基于比例导数（PD）的反馈补偿器，通过主动修改系统刚度和阻尼来扩展带宽。实验结果表明，该系统具有显著的改进效果：非线性3.2%，跨轴耦合0.4%，定位精度优于0.1 μm，工作行程超过±500 μm，带宽375 Hz。这些成果验证了所提出的线性导向设计方法的有效性，并强调了其与同类工作相比的先进性，表明优化后的执行器在精度、行程能力和动态响应特性方面具有优越的综合性能。

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引用次数: 0

Tilt-translational analysis and enhanced LQG control with a virtual sensor fusion configuration: in application to ultra-low frequency seismic vibration isolation 倾斜平移分析和增强LQG控制与虚拟传感器融合配置：应用于超低频地震隔振

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-03-01 Epub Date: 2025-12-05 DOI: 10.1016/j.precisioneng.2025.12.004

X. Yin , Z. Zhang , W. Bai, J. Lian, G. Zhao

The goal of this study is to explore the underlying mechanisms to achieve ultra-low frequency active seismic vibration isolation, with a focus on dynamic analysis and multi-input-multi-output control algorithms. To this purpose, a dedicated seismic isolation system is constructed. A theoretical study is firstly performed in order to accurately derive the dynamic model of the system. This is done by individually modelling the dynamics of each sub-system and then connecting the sub-systems via a feedback approach. With the derived model, the couplings between the inertial sensor and the active platform are clearly presented. As for the controller, an LQG controller augmented with a virtual sensor fusion control scheme is proposed. In such a configuration, the influence induced by the high-frequency flexible modes can be suppressed so that the real states of the system can be accurately predicted by the Kalman filter. Experiments are then conducted for validating the theoretical analysis and examining the vibration isolation performance. A reduction of the transmitted motion of up to 60 dB in a frequency range from 0.1 Hz to 10 Hz is obtained, where the 60 dB reduction is achieved around the resonances of the system.

本研究的目的是探讨实现超低频率主动地震隔振的潜在机制，重点是动力学分析和多输入多输出控制算法。为此，建立了专用的隔震系统。为了准确地推导出系统的动力学模型，首先进行了理论研究。这是通过单独建模每个子系统的动态，然后通过反馈方法连接子系统来完成的。利用所建立的模型，明确了惯性传感器与主动平台之间的耦合关系。在控制器方面，提出了一种增强虚拟传感器融合控制的LQG控制器。在这种配置下，可以抑制高频柔性模态的影响，从而使卡尔曼滤波器能够准确地预测系统的真实状态。通过实验验证了理论分析和隔振性能。在0.1 Hz到10 Hz的频率范围内，传输运动减少了60 dB，其中60 dB的减少是在系统的共振周围实现的。

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引用次数: 0

Synergistic mechanism of green corrosion inhibitors COS and CMC-Na in Co electrochemical mechanical polishing 绿色缓蚀剂COS和CMC-Na在Co电化学机械抛光中的协同作用机理

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-03-01 Epub Date: 2025-12-05 DOI: 10.1016/j.precisioneng.2025.12.008

Chunlin Cai, Min Zhong, Meirong Yi, Xiaobing Li, Jianfeng Chen, Wenhu Xu

Electrochemical mechanical polishing (ECMP), through the introduction of electric field, promotes the chemical reaction during polishing. However, the addition of electric field will accelerate the oxidative corrosion, at this time the effective corrosion inhibitor must be added in the polishing solution. Nevertheless, most traditional corrosion inhibitors are toxic and inhibition efficiency is low. In order to meet this technical challenge, this paper investigates the effect of two green corrosion inhibitors, chitosan oligosaccharide (COS) and carboxymethylcellulose sodium (CMC-Na), on Co ECMP, and compares them with the traditional inhibitor TAZ. The results show that when COS and CMC-Na are added at the same time, the polished Co surface quality can be greatly improved, and the surface roughness decreases by 94.6 %. It indicates that adding COS and CMC-Na simultaneously can play the best corrosion inhibition effect and achieve the best surface quality. The synergistic behavior and action mechanism of COS/CMC-Na are analyzed by polishing experiments, static corrosion, electrochemical tests, XPS, and AFM. This study provides a reference for the development of green polishing solutions for Co ECMP.

电化学机械抛光（ECMP）是通过引入电场，促进抛光过程中的化学反应。但电场的加入会加速氧化腐蚀，此时必须在抛光液中加入有效的缓蚀剂。然而，传统的缓蚀剂大多是有毒的，缓蚀效率低。为了应对这一技术挑战，本文研究了两种绿色缓蚀剂壳聚糖低聚糖（COS）和羧甲基纤维素钠（CMC-Na）对Co ECMP的影响，并与传统缓蚀剂TAZ进行了比较。结果表明：当Co和CMC-Na同时加入时，抛光后的Co表面质量得到了很大的改善，表面粗糙度降低了94.6%；结果表明，同时加入COS和CMC-Na可以达到最佳的缓蚀效果，获得最佳的表面质量。通过抛光实验、静态腐蚀实验、电化学测试、XPS和AFM分析了COS/CMC-Na的协同行为和作用机理。本研究为Co - ECMP绿色抛光方案的开发提供了参考。

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引用次数: 0

NURBS-based freeform surface reconstruction from sparse and unstructured contact measurement data using iterative control point optimization 基于迭代控制点优化的稀疏非结构化接触测量数据的nurbs自由曲面重建

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-03-01 Epub Date: 2025-11-22 DOI: 10.1016/j.precisioneng.2025.11.025

Zhifu Ma, Yong Lu, Kenan Deng

High-precision surface reconstruction is crucial for freeform surface measurement, and the Non-Uniform Rational B-Spline (NURBS) surface fitting is widely used in this process. To improve the NURBS surface fitting accuracy based on sparse and unstructured contact measurement data, this paper proposes a freeform surface reconstruction method that integrates NURBS surface fitting with iterative control point coordinate optimization. The proposed method begins by employing cubic spline interpolation to generate uniformly spaced fitting points from measurement data. Then, the fitting point is parameterized by chord length parameterization and the initial NURBS surface parameter is obtained with least squares fitting. Subsequently, an iterative control point coordinate optimization strategy is applied to reconstruct the surface. In this strategy, the distance between measurement points and the fitted NURBS surface is calculated, and then a new index, the sum of local squared distances (SLSD) is introduced. According to the calculated SLSD, the NURBS surface is reconstructed locally and iteratively by optimizing the control point coordinates corresponding to the max SLSD. With the proposed strategy, only one control point is optimized at a time, and the parameterization results of measurement points within the influence region of the control point are optimized simultaneously. Experiment result shows that the reconstruction accuracy of the proposed method is higher than 0.02 mm.

高精度的曲面重建是自由曲面测量的关键，非均匀有理b样条曲面拟合在此过程中得到了广泛的应用。为了提高基于稀疏非结构化接触测量数据的NURBS曲面拟合精度，提出了一种将NURBS曲面拟合与迭代控制点坐标优化相结合的自由曲面重建方法。该方法首先采用三次样条插值从测量数据中生成均匀间隔的拟合点。然后，通过弦长参数化对拟合点进行参数化，通过最小二乘拟合得到NURBS曲面的初始参数；随后，采用迭代控制点坐标优化策略对曲面进行重构。该策略首先计算测量点与拟合NURBS曲面之间的距离，然后引入一个新的指标——局部距离平方和（SLSD）。根据计算得到的SLSD，通过优化最大SLSD对应的控制点坐标，局部迭代重构NURBS曲面。采用该策略，每次只对一个控制点进行优化，同时对控制点影响区域内测点的参数化结果进行优化。实验结果表明，该方法的重建精度高于0.02 mm。

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引用次数: 0

An accumulative wear prediction method of planetary roller screw mechanism with multi-source errors 多源误差行星滚子丝杠机构累积磨损预测方法

IF 3.7 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology

Pub Date : 2026-03-01 Epub Date: 2025-12-17 DOI: 10.1016/j.precisioneng.2025.12.014

Mingcai Xing , Shuo Liu , Mingkang Wang , Yi Cui , Qiangqiang Huang , Songyu Li

During the machining process of planetary roller screw mechanism (PRSM), the multiple geometrical errors are produced and the multiple errors play the significant roles in wear evolution of PRSM. However, the accumulative wear evolution of PRSM with multi-source errors has remained unclear. This work proposes the accumulative wear prediction model of PRSM with multi-source errors. The accumulative wear evolution of screw, rollers and nut with multi-source errors are elucidated based on the measuring roller nominal diameter error (RNDE), screw eccentric error (SEE) and nut eccentric errors (NEE). The comprehensive effects of RNDE, SEE and NEE on the accumulative wear evolution of PRSM are investigated. It is found that the multi-source errors cause the inconsistency in the accumulative wear depth among multiple rollers, and the reasonable errors matching can reduce the accumulative wear of nut.

行星滚子螺杆机构在加工过程中产生多种几何误差，这些几何误差对行星滚子螺杆机构的磨损演化有重要影响。然而，PRSM在多源误差情况下的累积磨损演化尚不清楚。提出了含多源误差的永磁同步电机累积磨损预测模型。基于测量滚轮公称直径误差（RNDE）、螺杆偏心误差（SEE）和螺母偏心误差（NEE），分析了多源误差下螺杆、滚子和螺母的累积磨损演化规律。研究了RNDE、SEE和NEE对PRSM累积磨损演化的综合影响。发现多源误差导致多滚子累积磨损深度不一致，合理的误差匹配可以减少螺母累积磨损。

引用次数: 0